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---
layout: docs
title: Borders
description: Use border utilities to quickly style the border and border-radius of an element. Great for images, buttons, or any other element.
group: utilities
toc: true
---
## Border
Use border utilities to add or remove an element's borders. Choose from all borders or one at a time.
### Additive
{{< example class="bd-example-border-utils" >}}
<span class="border"></span>
<span class="border-top"></span>
<span class="border-end"></span>
<span class="border-bottom"></span>
<span class="border-start"></span>
{{< /example >}}
### Subtractive
{{< example class="bd-example-border-utils bd-example-border-utils-0" >}}
<span class="border-0"></span>
<span class="border-top-0"></span>
<span class="border-end-0"></span>
<span class="border-bottom-0"></span>
<span class="border-start-0"></span>
{{< /example >}}
## Border color
Change the border color using utilities built on our theme colors.
{{< example class="bd-example-border-utils" >}}
{{< border.inline >}}
{{- range (index $.Site.Data "theme-colors") }}
<span class="border border-{{ .name }}"></span>
{{- end -}}
{{< /border.inline >}}
<span class="border border-white"></span>
{{< /example >}}
## Border-width
{{< example class="bd-example-border-utils" >}}
<span class="border border-1"></span>
<span class="border border-2"></span>
<span class="border border-3"></span>
<span class="border border-4"></span>
<span class="border border-5"></span>
{{< /example >}}
## Border-radius
Add classes to an element to easily round its corners.
{{< example class="bd-example-rounded-utils" >}}
{{< placeholder width="75" height="75" class="rounded" title="Example rounded image" >}}
{{< placeholder width="75" height="75" class="rounded-top" title="Example top rounded image" >}}
{{< placeholder width="75" height="75" class="rounded-end" title="Example right rounded image" >}}
{{< placeholder width="75" height="75" class="rounded-bottom" title="Example bottom rounded image" >}}
{{< placeholder width="75" height="75" class="rounded-start" title="Example left rounded image" >}}
{{< placeholder width="75" height="75" class="rounded-circle" title="Completely round image" >}}
{{< placeholder width="150" height="75" class="rounded-pill" title="Rounded pill image" >}}
{{< /example >}}
### Sizes
Use the scaling classes for larger or smaller rounded corners. Sizes range from `0` to `3`, and can be configured by modifying the utilities API.
{{< example class="bd-example-rounded-utils" >}}
{{< placeholder width="75" height="75" class="rounded-0" title="Example non-rounded image" >}}
{{< placeholder width="75" height="75" class="rounded-1" title="Example small rounded image" >}}
{{< placeholder width="75" height="75" class="rounded-2" title="Example default rounded image" >}}
{{< placeholder width="75" height="75" class="rounded-3" title="Example large rounded image" >}}
{{< /example >}}
## Sass
### Variables
{{< scss-docs name="border-variables" file="scss/_variables.scss" >}}
{{< scss-docs name="border-radius-variables" file="scss/_variables.scss" >}}
### Mixins
{{< scss-docs name="border-radius-mixins" file="scss/mixins/_border-radius.scss" >}}
### Utilities API
Border utilities are declared in our utilities API in `scss/_utilities.scss`. [Learn how to use the utilities API.]({{< docsref "/utilities/api#using-the-api" >}})
{{< scss-docs name="utils-borders" file="scss/_utilities.scss" >}}
{{< scss-docs name="utils-border-radius" file="scss/_utilities.scss" >}}
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